Staple-inserting machine



May 28, 1929. G. R. COYNE STAPLE INSERTING MACHINE Filed Om,v 4, 1926 Patented May 28, 1929..

U l 'i' GUY R. COYNE, or MILWAUKEE, WISCONSIN, asst-anon T rinrrnn snon Macaw any oonroaarron, or rarnnsomnnwannsn'r, A con-rona'rro'n on NEW JER- SEY.

srArLn-msnnrrne MACHINE.

Application filed Qctober 4, 192a Serial No; aaass.

This invention relates to staple inserting 7 machines and is illustrated herein as embodied in a machine arranged to form staples from wire and to drive the staples into shoe parts.

Among the uses to which staple-inserting machines of this character are put in the manufacture of McKay shoes is the sole-laying operation. In performing this operation an outsole is positioned by the operative in the proper relation to a lasted shoe upper and insole. The operator then presents the work to the nozzle of the staple inserting machine, usually inserting a staple at each end of the tip line, a pair of staples at the ball of the sole, a pair of staples in the shank, and two or three staples in the heel-seat. In case of womens shoes having pointed toes, a number of closely spaced staples are often in serted around the toe to take the place of the McKay stitching which then extends only about to the tip line. When inserting the staples the shoe is presented with its toe to-' ward the machine and is moved lengthwise between the insertion of successive staples so that the staples at the tip line,the ball and the shank portion of the sole are inserted in that order, being driven into the groove of the McKay outsole or into the shoulder of Km v of these staples are clenched upon the iron channel closely adjacent to the groove.

bottom with which a McKay last is commonly provided. 1

As staple inserting machines of this character are commonly organized, the staplesare formed and driven with their bars parallel to the front of the machine. Thus when they are driven into the channel or groove of the soleof a shoe which isto be McKay stitched, I

i provide an improved staple-inserting machine organized to insert staples in such a manner that the bars of the staples may be located in a predetermined position not necessarily parallel with the position occupied by the bars when thestaples are formed. In the illustrated machine this is done by means of a novel throat member or nozzle having a rifled passage extending therethrough, the grooves of the rifling being arranged to engage the legs of the staples to control the positi 011 of the staples as they are moved through the nozzle into engagement with the work. Since the illustrated machine forms the staples with their bars parallel to the front of the machine, and it is desirable, for ex ample in McKay 'solelaying, to insert the staples with their bars at right angles to the front of the machine, the rifling of the throat of the illustrated machine has a quarter twist, that is the rifling is in the form of a spiral turning through 90. degrees between one end of the nozzle and the other..

The novel shoe and method of McKay sole laying disclosed herein are not claimed in this tures in view, the invention'will now be del scribed with reference to the accompanying draw ngs and pointed out in the-claims.

In the drawings,

Fig.1 is a frontelevation of the head of a stapling machine embodying the invention,

parts of the mechanism being shown verse section; v

Fig. 2'is aplan view on an enlarged scale of the rifled nozzle of the machine of Fig. 1; Fig. 3 isa vertical section on the line III,III of Fig. 2; and I Fig. a illustrates the manner in which a staple is rotated as it-is'driven through the rifled nozzle of the machine.

The invention is illustrated herein as embodied in a machine for making and driving staples of the typedisclosed in Letters Patent of the United States No. 1,016,930, granted Feb; 13, 1912, on anapplication of William H. Borden. Since that patent discloses a well known commercial machine many of theparts of which formno part of the present invention, a complete description of the machine is not included in this specification. For such a complete description, reference may be had to said Letters Patent. Among the parts of the illustrated machine (which parts are given herein the samereference characters as in said Letters Patent) in transare a pair of feed rolls 90, 92 arranged to feed av Wire w to a pair of suitably operated said Letters Patent.

knives or cutters 80, 82, an inside former 30,

an outside former 32, and a driver 18 carried by a driver bar 16. These parts may be and, as illustrated, are operatedas set forth in The illustrated machine is provided with a throat member or nozzle 40 having a driverpassage 42, the entering end 44 01 which is flared to facilitate the entrance of the staples. In accordance with the present inven tion, the driver passage of nozzle 40 is rifled as shown at 46 (Figs. 2 and 3), the rifling,

which comprises a pair of oppositely disposed grooves, being in the form of a spiral having a quarter turn so as to rotate the staples through 90 degrees. The grooves of the rifling are arranged to engage the legs of the staple as thestaple passes through the nozzle, and to insure proper engagement of the staple legs with the rifling the flared entering end of the driver passage is provided a groove 48 converging toward the ends of the grooves of the rifling. Thus if a staple should be somewhat displaced inits passage from the formers of the machine to the nozzle, nevertheless the ends of its legs will enter inserted.

It will be seen that when, during the solelayingoperation as performed in the manufacture of a McKay shoe, the shoe is presented with its toe pointing toward the machine, thestaples will be formed bythe throat with their bars arranged. transversely of the groove and channel, but in their passage through the nozzle into engagement with the sole of ashoe they will be turned through 90 degrees (as illustrated in Fig. 4) so that they are driven into the shoe Swith their barssubstantially parallel to the groove 52, preferably with the bars of the staples adjacent to the groovev 52 but upon the shoulder 54 of the channel adjacent to the groove rather than in the groove itself. Fig. 4, moreover, illustrates at 56 a staple in the relation to the shoe atwhich it is formed with its bar arranged transversely of the groove, the ar' rows indicating the manner in which the staple is rotated so that it is driven into the sole of the shoe with its bar parallel to'the groove 52 as at 58. With the. staple so located the possibility of the needle of the McKay stitcher catching'upon the bars of the staple is much reduced and the consequent breakage of needles and injury to the thread is to a large extent eliminated.

WVhile the invention has been described herein with reference to a machine of the type disclosed in Letters Patent of the United States No. 1 016 930 and with reterence to the.

the rotation given to the staples may be varied'as may be desired.

Having described'the invention, what- I claim as new and desire to secure by Letters Patentof the United States is:

1. A rifled, nozzle for a staple-inserting machine with the grooves of the rifling arranged to engage the legsof staples bent "from pieces of wire thereby to control the position of thestaples as the staples are'moved Also it is not essential that the rotathrough the nozzle into engagement with the Work. 7'

2. A nozzle for a staple-inserting machine having a driver passage with a flared entering end, the driver passage beingprovidcd with rifling compris ng- 3.135111 of oppositely disposed narrow spiral grooves arranged to receive the legs of a staple as the staple passes through the driver passage.

3. A fastening-inserting machine having an insideand an outside former arranged to form staples from pieces of wire ted thereto with the bar of each staple substantially parallel to the front of the machine, a driver ar ranged to drive the staples into a work piece, and a rifled throat member through which the staples pass after they have been formed and as-they are driven arranged to rotate each staple about the line of drive through a predetermined angle between the formation of the staple and its insertion into the work;

In testimony whereof I have signed my name to this specification.

GUY R. COYNE. 

